Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Basic And Diluted Earnings Per Share) (Detail)

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Earnings Per Share (Basic And Diluted Earnings Per Share) (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Net income (loss):        
Continuing operations $ 35,611 $ 32,557 $ 62,899 $ 53,857
Discontinued operations (4,864) (590) (5,982) (1,610)
Net income $ 30,747 $ 31,967 $ 56,917 $ 52,247
Weighted average number of shares outstanding:        
Basic 56,970 58,648 57,640 58,432
Dilutive effect of non-cash compensation awards 1,480 2,131 1,611 2,128
Diluted 58,450 60,779 59,251 60,560
Net income (loss) per share - basic:        
Continuing operations $ 0.63 $ 0.56 $ 1.09 $ 0.92
Discontinued operations $ (0.09) $ (0.01) $ (0.10) $ (0.03)
Net income $ 0.54 $ 0.55 $ 0.99 $ 0.89
Net income (loss) per share - diluted:        
Continuing operations $ 0.61 $ 0.54 $ 1.06 $ 0.89
Discontinued operations $ (0.08) $ (0.01) $ (0.10) $ (0.03)
Net income $ 0.53 $ 0.53 $ 0.96 $ 0.86
Unexercised employee stock options and stock appreciation rights and unvested restricted stock units excluded from the diluted EPS calculation because their effect would have been antidilutive 751 1,209 845 1,305